I drove the N20 in the Z4 as well. It is NOT smooth like the eye-sixes. What it is, is boisterous, loud(ish) and gives off an aura more of fun than elegance. Which is fine if that's what one is after. The Brit mags' moniker for the 3 series is 'small executive saloon' and the sound and feel of this engine doesn't line up with that image IMO. It might sound different in the F30. But when I looked at the running motor with the hood up that sucker was shaking like it was under an epileptic fit.
Performance was quite good btw. Not sure if the F30 is a heavier car so that could factor (sure someone knows this off the top of their head; am too lazy to look it up).
As others have noted, I expect the F30 with N20 will sell incredibly well despite any of this. Maybe because of this.
Last edited by kck7; 12-05-2011 at 06:55 PM.